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Well, I just tried option 'B'...
At first it appeared to work fine (and showed zero difference from 10% duty cycle all the way up to 95%) when I turned on a 8k rpm gauge sweep setup on key-on with my standalone ECU. Which is how I'm able to see if the tach responds without a running motor...
I'm trying to figure out how to modify the tachometer circuit in my car to accept the signal from an aftermarket standalone ECU. Unfortunately I DON'T have enough electronics knowledge/background to figure this out first time through on my own :( . Help would be much appreciated.
If you want to...
Hi,
I'm currently looking for a datasheet on the Toshiba T2685A (An ASIC... I think. I know just enough to get myself in serious trouble)
It was discontinued in 1996 by Toshiba and requests for a copy of the datasheet from Toshiba have not been met with success. Attempt's at finding it...
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